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In Java, what's the difference between public, default, protected, and private?

Royce Roy 2697 06 May 2015

Are there clear rules on when to use each of these when making classes and interfaces and dealing with inheritance?

Ask by Royce Roy

Updated 06 May 2015

1 Answers

Anonymous User 06 May 2015 Accepted Answer

This Java tutorial may be of some use to you.

Modifier    | Class | Package | Subclass | World
————————————+———————+—————————+——————————+———————
public      |  y    |    y    |    y     |   y
————————————+———————+—————————+——————————+———————
protected   |  y    |    y    |    y     |   n
————————————+———————+—————————+——————————+———————
no modifier |  y    |    y    |    n     |   n    **also known as package-private**
————————————+———————+—————————+——————————+———————
private     |  y    |    n    |    n     |   n

y: accessible
n: not accessible

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